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riscv: report perf event for misaligned fault

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Add missing calls to account for misaligned fault event using
perf_sw_event().

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20231004151405.521596-4-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Clément Léger 2023-10-04 17:14:00 +02:00 committed by Palmer Dabbelt
parent 7c83232161
commit 89c12fecdc
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1 changed files with 5 additions and 0 deletions
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5
arch/riscv/kernel/traps_misaligned.c
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@ -6,6 +6,7 @@
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/perf_event.h>
#include <linux/irq.h>
#include <linux/stringify.h>
@ -294,6 +295,8 @@ int handle_misaligned_load(struct pt_regs *regs)
unsigned long addr = regs->badaddr;
int i, fp = 0, shift = 0, len = 0;
perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr);
if (get_insn(regs, epc, &insn))
return -1;
@ -382,6 +385,8 @@ int handle_misaligned_store(struct pt_regs *regs)
unsigned long addr = regs->badaddr;
int i, len = 0;
perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr);
if (get_insn(regs, epc, &insn))
return -1;